Glass-blowing machine.



H. A. SGHNELBAGH 6v H. A. HEUPEL.

GLASS BLOWING MACHINE. APPLIOATION rum MAY z5, 1908.

929,330. Patented July 27, 1909.

3 SHEETS-SHEET 1.

H. A. SGHNELBAGH & H. A. HEUPBL.

GLASS BLOWING MACHINE.

APPLICATION FILED MAY 25, 1908.

Patented July 27, 1909.

3 SHEETS--SHBET 2.

54- INVENTORS lH. A. SGHNELBAGH & H. A. HEUPBL..

GLASS BLOWING MACHINE.

APPLICATION FILED 11u25. 190e.

929,330. Patented July 27, 1909.`

3 SHEETS-SHEET 3.

WITNESSES. 4% I liz-EKNTOF! S.

M @WLM mail MW@ UNITED STATES PATENT OFFICE.

HARRYA. SCHNELBACH, OF GRAFTON, AND HERMAN A. HEUPEL, OF CHARLEROI,PENN- SYLVANIA, ASSIGNORS TO MACBElH-EVANS GLASS COMPANY, OF PITTSBURG,PENN- SYLVANIA, A CORPORATION 'OF PENNSYLVANIA.

GLASS-BLOWING MACHINE.

Specification of Letters Iatent.

Patented July 27, 1909.

Serial N0. 434,912.

Application led May 25, 1908.

T 0 all lwhom it may concern.:

Be it known that we, llamar A. SCHNEL- acn, :i resident of Grafton, inthe county of Allegheny and State of Pennsylvania, and l'lnnMAN A.llnuPnL, a resident of Charleroi, county of lVashington, Stateaforesaid, have invented a new and useful Improvement in Glass-BlowingMachines; and we do hereby declare the following to be a full, clear,and exact description thereof. A

Our invention relates to glass lblowing machines, its object being toprovide a simple and eiiicient means for oscillating the blow pipes asthey travel around a rotary frame, so as to prevent the twisting ordistorting of the glass in the mold which sometimes is liable to occurwhere the blow pipe is rotatedconstantly in one direction.

Our invention comprises the novel features hereinafter set forth andclaimed.

In the accompanying drawings Figure 1 is a side elevation ofa glassblowing machine embodying our invention; Fig. 2 isa cross section on theline 2 2, Fig. 1; Fig. 3 is a section on the line 3 3, Fig. 2; Fig. 4 isa plan view of the cam ring removed; and Figs. 5, 6, 7 and 8 areenlarged details.

We have shown our invention applied to an ordinary form of glass blowingmachine, and as the construction of the machine in itself forms no partof our invention we will only refer to the same in a general way.

The numeral 2 designates the base or support of the machine which may bemounted on wheels 3 for Vtransporting the machine from one part of thefactory to another. Supported on the base 2 is the pillar` 2a to whichthe frame 4 is secured, said frame being vertically adjustable insuitable guides 5 in the pillar 2a. On the frame 4 is thesheli 6 whichforms the support for a suitable electric motor 7. A belt 8 connects themotor shaft with the pulley 9 on the shaft 10 journaled in suitablebearings 11 on the frame. The shaft 10 is connected by a belt to acountershaft 10a. Secured to the countershaft 10 is the worm 12 whichengages the worm wheel 13 on the vertical shaft 1 4. This shaft 14 isstepped at its lower end in the base 2 and said shaft at the upper endpasses through the sleeve 15 on the frame A table 16 is secured to theshaft 14, said table carrying the molds 17 which are arranged at properintervals around the outer edge of said table 16. Keyed to the shaft 14is the spider 18 with the arms 19 extending radially therefrom with thedownwardly extending ribs 20. At the outer ends of the arms 19 are thesleeves 21 and within said sleeves 21 are the bushings 22 connected toThe bracket 23 is provided with the sock--` ets 29 and within saidsockets are the hollow pins 30 and a spring 31 is located in said hollowpin 30, one end of said spring bearing against the outer end of said pinand the opposite end of said spring bearing against the nut 32 engagingthe threaded portion 33 of the socket 29. This spring permits of acertain amount of play on the part of the in 30 and said pin ispermitted .to yield wen subjected to unusual pressure, as hereinafterset forth.

The arms 19 are provided with the bosses 34 secured thereto by means ofthe screws 35. Crank arms 36 have bosses 37 with the openings 38 whichencircle the necks 39 of the bosses 34. Washers 40 are' provided andscrews 41 pass through countersunk openi ings in said washers and enterthe threaded seats in the necks 39.- This permits of the freeoscillation'of the crank arms 36 upon the arms 19. One end of the crankarm 36 is engaged by the hollow pins 30 and the opposite end of saidcrank .carries the cam 43.-"

A stationary circular plate 44 has-the sleeve 45 by means of which saidplate is held in a fixed position upon the frame 4. This plate 44 hasthe teeth 46 formed in its periphery with which the idlers 24 and 26 areadapted to engage alternately. Secured to the lower face of the plate 44is the ring 47 which is provided with the 'cam blocks 48 staggered withreference to each other and provided with the beveled ends l49. Thesecam blocks are in the path of the cams 43 and the cranks 36 are shiftedby said cam blocks in the manner hereinafter set forth.

Extending down through the rotary sockets 28 are the pipes 50, saidpipes being connected by fiexible connections 51 to the air chambers 52to which air is supplied in proper quantity. The sockets on the lowerends of the pipes 50 are adapted to engage the upper ends of the blowpipes 54:

The pipe 50 is vertically movable in the ro-- travel along the cam 59.

When our improved machine is in use the blow pipes with the molten glasson the ends thereof are inserted in the racks in such .position as tobring the lower ends of the blow pipes into proper position withreference to the open mold, whereupon the moldI is closed and the pipe50 lowered automatically by means of the lever 55 working in connectionwith the cam 59. Blow pipes are arranged to be inserted at the front ofthe machine and While the machine is in operation and the table carryingthe molds, as well. as the spider 18, are in course of rotation. Themold, after being closed, v'moves around and rotary motion is impartedto the blow pipe from the idler 26 which is in engagement with thestationary gear plate 44 to the gear\27 on the rotary socket 28. Theidler 26 is in mesh with the gear plate 44 while the cam 34 has itsinner face in contact with one of the cam blocks 48. Just as soon,however, 4as the spider 18 rotatessuliciently to disengage said'cam fromthe cam block, the cam 43 will come into engagement with one of theouter cam blocks 48, whereupon the crank arm will be moved so that theend 42 of the crank Jarm will bear against one of the hollow pins 30 andact to move the bracket 23 sufficiently to throw the idler 26 out ofmesh with the gear plate 44 and throw the idler 24 into engagement withsaid plate. The idler 24 through the idler 25 meshing with the gearwheel 27-will impart an opposite rotary movement to the gear wheel 27,whereupon the direction of rotation of the blow pipe will be reversed.In case the gear wheel 24'when moved' into engagement with the teeth ofthe gear plate 44 should not exactly mesh with said gear plate thespring 31 will permit the pin 30 to yield sutliciently -to prevent anytearing or stripping of the gear teeth. In this manner, as the rotaryframe travels around, the blow pipe is given an oscillatory movement andprevents the twisting or distorting of the glass in the mold and aperfect articIe is assured.

What we claim is:

l. In a glass blowing machine, the combination of a rotary frame, a moldand blow pipe carried thereby,means for rotating said frame, a gearwheel on said frame, connections between said gear wheel and the blow ywheel, a crank, one arm o wheel, a" circular rack pipe, a movableframe.,- idler gears carried by saidframe and meshing with said gearwheel, a vcircular gear rack, and means for automatically throwing saididlers alternately into engagement with said rack.

2. In a glass blowing machine, the combination of arotary frame, a moldand blow pipe carried thereby, meansr for rotating said frame, a gearwheel on said frame, connections between said gear wheel and the blowpipe, a movable frame carried by said rotary frame, idlers on saidmovable frame meshing with said gear wheel, a circular rack, and meansfor throwing said idlers alternately into engagement with said rack.

3. In a glass blowing machine, the combination of a rotary frame, a moldand blow pipe carried thereby, means for rotating said frame, a gearwheel on said frame, connections between said gear wheel and the blow ie a movable frame on said rotar frame i idlers carried by said frame andmeshing with said gear wheel, a circular rack, a crank arm carried bysaid rotary frame and engaging said movable frame, and means foroperating said crank arm, whereby'said idlers are alternately thrownvinto engagement with said circular rack.

4. In a glass blowing machine, the combination of a rotary frame, a moldand blow ame, a gear wheel on said frame, a mov- .able frame on saidrotary frame, idlers onv said movable frame meshing with said gearwheel, a circular rack plate, a crank arm,

one arm thereof engaging said movable frame, and means carried by saidcircular rack plate, whereby said idlers are alternately thrown intoengagement with the teeth of said rack plate.

5. In a glass blowing machine, the combination of a rotary frame, a moldand blow pipe carried thereby, means for rotating said frame, a gearwheel on said frame, a movable frame on said rotary frame, idlers onsaid movable frame meshin with said gear which engages said movableframe, a cam on the other arm of -said crank, a circular rack plate,andcam blocks on said circular rack plate in the path of said cam,whereby said idlers are alternately thrown into engagement with saidcircular rack plate.

6. In a glass blowing machine, the combination of a rotary frame, a moldand blow pipe carried thereby, means for rotating said frame, a gearwheel on said frame, a movable frame on.` saidy rotary frame, idlers onsaid movable frame meshing with said gear late, a crank on said fra-me,one arm of which engages said movable frame, a cam on the other arm ofsaid crank having double inclined faces, and cam blocks on -saidcircular rack plate, said blocks being staggered with reference to pipecarried thereby, means for rotating said each other, whereby said idlersaremoved alternately mesh with said circular rack plate.

7. In a glass blowing machine, the combination of a rotary frame, a moldand blow pipe carried thereby, means for rotating said frame, a gearwheel on said frame, a mov-` able Jframe` idlers on said movable framei'neshinfr with said gear` Wheel, a circular rack plate, a crank,oppositely arranged yielding bearing faces on said movable plate betweenwhich one arm of said crank arm rests, andpneans carried by saidcircular plate for oscillating said crank, whereby said idlers arealternately thrown into en gagement with said circular rack.

8. In a glass blowing machine, the combination of a rotary frame, a moldand blow pipe carried thereby, means for rotating saidV frame a gearwheel on said frame, a movable rame carried by said rotary' frame,idlcrs on said movable frame meshing with said gear wheel, a circularrack plate, oppositcly arranged yielding pins on said movable traine. acrank, one arm of which rests between said pins, and means carried bysaid circular rack plate by which said crank is oscillaled and saididlers alternately thrown into engagement with said circular rack.

In testimony whereof, we the said HARRY A. SCIINELBAcn and HERMAN A.HEUPEL have hereunto set our hands.

HARRY A. SCHNELBACH. HERMAN A. HEUPEL.

Witnesses:

L. P. FLICKINGER, Jos. V. STARK.

